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[Bug tree-optimization/66278] Missed auto-vectorization of an array subtraction


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66278

--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to amker from comment #5)
> (In reply to Martin Liška from comment #4)
> > Greating, starting from r238586 the test-case is vectorized. Bin should I
> > create a test-case from this, or do you have a similar one. I'll then close
> > the PR.
> 
> Yes, please add a test for it.  Thanks.

Great, one last thing is how to identify that the vectorization happened. A
dump file output?

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